Get CPU Arch

General
1

I feel like this is a dumb question… but how do I determine if my app is running on ARM64 or x64?

I compile it for different platforms, so need to determine with code during app start. I’d rather not parse “uname” output if possible!

2

If you happen to have MBS plugins, you can use SystemInformationMBS.isARM

3

I don’t, am trying to do it natively

4 
#if TargetARM then
  // https://documentation.xojo.com/api/compiler_directives/targetarm.html

#elseif TargetX86 then
  // https://documentation.xojo.com/api/compiler_directives/targetx86.html

#endif
2 Likes
5

There is one issue with that Tim. You can’t tell if it’s an Intel binary running on an arm machine that way.

You could however use a shell command:

uname -m

Which should return arm64 or x86_64

6

Agreed, however OP mentioned

I’d rather not parse “uname” output if possible!

and doesn’t want to use plugins so options are becoming thin :man_shrugging:

1 Like
7

I knew it was a dumb question! I use TargetLinux / TargetWindows all the time.

Thank you

8

my use case is ARM binary on ARM, i am trying to keep a shared codebase throughout so will just run my check during start.

9

Is that true for all of your users? Windows ARM can also run Intel apps.

10

FWIW, uname is also a system call so the chances of this call changing its output is probably zero:

NSString *cpuArchitecture() {
    struct utsname systemInfo;
    uname(&systemInfo);
    return [NSString stringWithUTF8String:systemInfo.sysname];
}
1 Like
11

yes, 100%